From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 103514 invoked by alias); 27 Apr 2015 20:26:10 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Received: (qmail 103504 invoked by uid 89); 27 Apr 2015 20:26:09 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-3.8 required=5.0 tests=AWL,BAYES_00,SPF_HELO_PASS,SPF_PASS,T_RP_MATCHES_RCVD autolearn=ham version=3.3.2 X-HELO: mx1.redhat.com Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES256-GCM-SHA384 encrypted) ESMTPS; Mon, 27 Apr 2015 20:26:09 +0000 Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id t3RKQ7DL028121 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Mon, 27 Apr 2015 16:26:07 -0400 Received: from host1.jankratochvil.net (ovpn-116-27.ams2.redhat.com [10.36.116.27]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id t3RKQ40U021217 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Mon, 27 Apr 2015 16:26:06 -0400 Date: Mon, 27 Apr 2015 20:44:00 -0000 From: Jan Kratochvil To: Pedro Alves Cc: gdb-patches@sourceware.org, Phil Muldoon Subject: Re: [PATCH v2 1/2] compile: set debug compile: Display GCC driver filename Message-ID: <20150427202603.GA15660@host1.jankratochvil.net> References: <20150423203402.23140.92757.stgit@host1.jankratochvil.net> <553E5646.8020708@redhat.com> <20150427164757.GA10548@host1.jankratochvil.net> <553E6F92.4020204@redhat.com> <20150427175213.GA12596@host1.jankratochvil.net> <553E85BA.8020107@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <553E85BA.8020107@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-IsSubscribed: yes X-SW-Source: 2015-04/txt/msg01019.txt.bz2 On Mon, 27 Apr 2015 20:53:46 +0200, Pedro Alves wrote: > This split is a conscious design decision, > that has advantages like insulating the debugger from compiler ICEs. It would be useful if it was optional. This way it complicates the debugging a lot. AFAIK it is not optional due to packaging reasons, cc1 would need to be -fPIC which has some performance hit. OTOH that performance hit on x86_64 is say 1% (just my rough guess) but the performance hit of using GCC instead of Clang is 119%. So I do not see why the -fPIC is not acceptable for GCC. > And please don't tell me that LLDB/Clang don't crash. ;-) I find it offtopic here but when you ask all software has bugs, for LLDB/clang: * clang has not yet crashed for me on Linux during its daily use. (gcc did but this is just due to using gcc longer / more extensively.) * lldb has not crashed for me on OSX but I did not test it much there. * lldb Linux port did crash for me but I do not consider that port finished. Jan